Wednesday, February 08, 2006
Became an iPod user
At last, I bought a video iPod that is the 5th generation of the iPod family. It is thinner and lighter than I expected. Using an iPod is very easy for me because I already have used iTunes on my Mac. In addition, I have many mp3 files and video files in my iTunes music library. The problem is that I have to resize video files to move to iPod. Fortunately, iTunes can resize the video files, which have a large screen size, to play well on the iPod. Of course it takes a lot of time to covert the size of video. Anyway, It is good to enjoy the video on my new iPod when moving.
Monday, January 02, 2006
Flash memory
Today’s topic is about flash memory.
Flash memory is one of memory you are using everyday in your mobile devices.
Almost memories on your PC lose data when the power is off. However, flash memory can maintain data though the power is off. You are already experienced that your mp3 player never loses music files.
What is Flash Memory?
Flash memory is non-volatile, which means that it does not need power to maintain the information stored in the chip. In addition, flash memory offers fast read access times (though not as fast as volatile DRAM memory used for main memory in PCs) and better shock resistance than hard disks. ( from wikipedia)
Therefore, there are many applications that use flash memory such as storage on battery-powered device like MP3 Player, mobile phone and PDA. In addition, External USB storage we are using has a flash memory.
Flash memory is made in two forms: NOR flash and NAND flash. The name refers to the type of logic gate used in each storage cell.
Almost flash memory we are using to store data is NAND flash. NOR flash is used for running program like DRAM.
As you know, SAMSUNG is world's largest NAND flash memory chipmaker. The market share is 60%(?). The success of Apple's iPod enlarges the market of flash memory. So INTEL has a plan to produce NAND flash memory with Micronics that is one of the memory manufacturer in the US.
Followed by Hwang's law, Samsung under Hwang has redoubled chip capacity every year since 1999, creating an industrial pattern named "Hwang's law," overturning the previous "Moore's law" that had correctly observed the number of transistors per integrated circuit would double every couple of years.(from Korea times)
Anyway, more information will be stored to flash memory for future. Flash memory may replace hard disk.
Flash memory is one of memory you are using everyday in your mobile devices.
Almost memories on your PC lose data when the power is off. However, flash memory can maintain data though the power is off. You are already experienced that your mp3 player never loses music files.
What is Flash Memory?
Flash memory is non-volatile, which means that it does not need power to maintain the information stored in the chip. In addition, flash memory offers fast read access times (though not as fast as volatile DRAM memory used for main memory in PCs) and better shock resistance than hard disks. ( from wikipedia)
Therefore, there are many applications that use flash memory such as storage on battery-powered device like MP3 Player, mobile phone and PDA. In addition, External USB storage we are using has a flash memory.
Flash memory is made in two forms: NOR flash and NAND flash. The name refers to the type of logic gate used in each storage cell.
Almost flash memory we are using to store data is NAND flash. NOR flash is used for running program like DRAM.
As you know, SAMSUNG is world's largest NAND flash memory chipmaker. The market share is 60%(?). The success of Apple's iPod enlarges the market of flash memory. So INTEL has a plan to produce NAND flash memory with Micronics that is one of the memory manufacturer in the US.
Followed by Hwang's law, Samsung under Hwang has redoubled chip capacity every year since 1999, creating an industrial pattern named "Hwang's law," overturning the previous "Moore's law" that had correctly observed the number of transistors per integrated circuit would double every couple of years.(from Korea times)
Anyway, more information will be stored to flash memory for future. Flash memory may replace hard disk.
Wednesday, October 26, 2005
My PC
I have three computers. One is a power mac, another is a PC and the other is a notebook.
The power Mac is very fast and provides good performance because it has two CPU.
However, PC is very slow. It had been 4 years and 9 month after I bought.
For a long time, I added new equipments including a DVD-RW, a 1394 port and a USB2 port to my PC.
It has been sufficient to use my PC except CPU speed. However, the speed is always critical to use my PC after WindowsXP has been installed.
However, I do not have any plan to upgrade my PC because I already bought the power mac G5, but whenever I browse web sites, the Internet Explorer is mandatory to navigate specific sites that requires the transaction. I cannot but turn on my PC.
I will use the Mac & my PC simultaneously for some time.
The power Mac is very fast and provides good performance because it has two CPU.
However, PC is very slow. It had been 4 years and 9 month after I bought.
For a long time, I added new equipments including a DVD-RW, a 1394 port and a USB2 port to my PC.
It has been sufficient to use my PC except CPU speed. However, the speed is always critical to use my PC after WindowsXP has been installed.
However, I do not have any plan to upgrade my PC because I already bought the power mac G5, but whenever I browse web sites, the Internet Explorer is mandatory to navigate specific sites that requires the transaction. I cannot but turn on my PC.
I will use the Mac & my PC simultaneously for some time.
Thursday, August 11, 2005
Long time no see!
I forgot that there was my blog in the blogger.
There are many blog sites in the internet, so I have serveral blogs such as the bloglines, livejournal, egloos, and my own blog in my web hosting server. Particularly, The egloos is a popular blog service in Korea, especially for developers, because it doesn't need to show any AD and provides some features which other blog service can't follow. For example, your blogs can be printed out a colored book. :)
Actually, the blogger was not useful before, it seemed like a ftp server because we had to upload articles to the server, but was not able to upload images. Now, the service has been upgraded to support image upload to the server. So, I am considering using the blogger more frequently.
There are many blog sites in the internet, so I have serveral blogs such as the bloglines, livejournal, egloos, and my own blog in my web hosting server. Particularly, The egloos is a popular blog service in Korea, especially for developers, because it doesn't need to show any AD and provides some features which other blog service can't follow. For example, your blogs can be printed out a colored book. :)
Actually, the blogger was not useful before, it seemed like a ftp server because we had to upload articles to the server, but was not able to upload images. Now, the service has been upgraded to support image upload to the server. So, I am considering using the blogger more frequently.
Friday, July 09, 2004
Here is my English blog
I already have a blog. which is only written in Korean so I stated to post the first English blog article here to share my story with my foreign friends. I hope you enjoy my English blog although my English is not good enough.
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